Hannover 2020 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 50: Ultra-cold atoms, ions, and BEC VI (joint session A/Q)
Q 50.6: Vortrag
Donnerstag, 12. März 2020, 15:30–15:45, f303
A single beam grating magneto optical trap on an atom chip — •Hendrik Heine1, Alexander Kassner2, Christoph Künzler2, Marc C. Wurz2, Waldemar Herr1, and Ernst M. Rasel1 — 1Institut für Quantenoptik, Leibniz Universität Hannover — 2Institut für Mikroproduktionstechnik, Leibniz Universität Hannover
Matterwave interferometry with Bose Einstein Condensates (BEC) promises exciting prospects in inertial sensing and research on fundamental physics both on ground and in space. BECs can be created very efficiently by using an atom chip and compact realisations have already been shown. However for transportable or space applications, it is vital to reduce the complexity in order to lower size, weight and power demands of the device.
In this talk I will present a magneto optical trap and sub-Doppler cooling using only a single beam of light in combination with an optical grating on an atom chip. This reduces the complexity of the overall optical system and promises greater long-term stability. Finally, the atom chip allows for magnetic trapping and evaporative cooling by forced radio frequency evaporation towards a BEC.
This work is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry for Economic Affairs and Energy (BMWi) due to an enactment of the German Bundestag under grant number DLR 50WM1947 (KACTUS-II) and by the German Science Foundation (DFG) under Germany’s Excellence Strategy (EXC 2123) "QuantumFrontiers".